【错误记录】Android 应用中启动 FlutterActivity 报错 ( have you declared this activity in your AndroidManifest )

一、报错信息

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在 Android 中启动 FlutterActivity 报错 : Android 应用调用 Flutter 应用界面 ;

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.flutter_native, PID: 12994
    android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.flutter_native/io.flutter.embedding.android.FlutterActivity}; have you declared this activity in your AndroidManifest.xml?
        at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:2118)
        at android.app.Instrumentation.execStartActivity(Instrumentation.java:1746)
        at android.app.Activity.startActivityForResult(Activity.java:5412)
        at androidx.activity.ComponentActivity.startActivityForResult(ComponentActivity.java:597)
        at android.app.Activity.startActivityForResult(Activity.java:5337)
        at androidx.activity.ComponentActivity.startActivityForResult(ComponentActivity.java:583)
        at android.app.Activity.startActivity(Activity.java:5819)
        at android.app.Activity.startActivity(Activity.java:5787)
        at com.example.flutter_native.MainActivity$2.onClick(MainActivity.java:33)
        at android.view.View.performClick(View.java:7316)
        at com.google.android.material.button.MaterialButton.performClick(MaterialButton.java:1119)
        at android.view.View.performClickInternal(View.java:7290)
        at android.view.View.access$3600(View.java:838)
        at android.view.View$PerformClick.run(View.java:28262)
        at android.os.Handler.handleCallback(Handler.java:900)
        at android.os.Handler.dispatchMessage(Handler.java:103)
        at android.os.Looper.loop(Looper.java:219)
        at android.app.ActivityThread.main(ActivityThread.java:8668)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:513)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1109)
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二、报错信息

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在 AndroidManifest.xml 中配置 FlutterActivity :

<activity
    android:name="io.flutter.embedding.android.FlutterActivity"
    android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
    android:hardwareAccelerated="true"
    android:windowSoftInputMode="adjustResize" />
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完整的 AndroidManifest.xml 清单文件配置如下 :

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.flutter_native">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/Theme.Flutter_native">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name="io.flutter.embedding.android.FlutterActivity"
            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
            android:hardwareAccelerated="true"
            android:windowSoftInputMode="adjustResize" />
    </application>

</manifest>
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